state law allow cities and counties to ban cannabis dispensaries? even though voters approve the use of medical marijuana? >> the legislature knows how to say, thou shalt not ban dispensaries. they didn't say that. >> that's the question before california's highest court this week. the ruling could have a huge impact on the state's massive medical marijuana industry. >>> job growth in silicon valley is outpacing the rest of the nation. but a new report says the income gap between rich and poor is widening. leaving some minorities behind. >>> with the number of people riding bicycles rising fast, san francisco planners roll out a multimillion dollar strategy to add bike lanes, parking stations and other improvements. we'll talk with the head of the san francisco bicycle coalition. >>> plus, california takes the first step to grant special protection to the ocean's top predator. coming up next.